ITMO20120057A1 - "METHOD AND DEVICE FOR WELDING PROFILES IN PLASTIC MATERIAL, IN PARTICULAR PVC" - Google Patents

"METHOD AND DEVICE FOR WELDING PROFILES IN PLASTIC MATERIAL, IN PARTICULAR PVC" Download PDF

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Publication number
ITMO20120057A1
ITMO20120057A1 IT000057A ITMO20120057A ITMO20120057A1 IT MO20120057 A1 ITMO20120057 A1 IT MO20120057A1 IT 000057 A IT000057 A IT 000057A IT MO20120057 A ITMO20120057 A IT MO20120057A IT MO20120057 A1 ITMO20120057 A1 IT MO20120057A1
Authority
IT
Italy
Prior art keywords
welded
profiles
areas
compartment
sections
Prior art date
Application number
IT000057A
Other languages
Italian (it)
Inventor
Andrea Vaccari
Original Assignee
Graf Synergy Srl
Andrea Vaccari
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Graf Synergy Srl, Andrea Vaccari filed Critical Graf Synergy Srl
Priority to IT000057A priority Critical patent/ITMO20120057A1/en
Priority to ES16193166T priority patent/ES2712054T3/en
Priority to ES16199493T priority patent/ES2712057T3/en
Priority to DE202013012778.3U priority patent/DE202013012778U1/en
Priority to PCT/IB2013/051698 priority patent/WO2013132406A1/en
Priority to CN201710155192.7A priority patent/CN107009633A/en
Priority to PL16193166T priority patent/PL3141374T3/en
Priority to US14/381,391 priority patent/US9969124B2/en
Priority to PL13720049T priority patent/PL2822751T3/en
Priority to EP13720049.9A priority patent/EP2822751B1/en
Priority to RU2014131312A priority patent/RU2635614C2/en
Priority to PL16199493T priority patent/PL3156214T3/en
Priority to CN201380010958.2A priority patent/CN104284769A/en
Priority to CA2866114A priority patent/CA2866114C/en
Priority to EP16199493.4A priority patent/EP3156214B1/en
Priority to CN201710155207.XA priority patent/CN106903895B/en
Priority to ES13720049.9T priority patent/ES2616786T3/en
Priority to EP16193166.2A priority patent/EP3141374B1/en
Publication of ITMO20120057A1 publication Critical patent/ITMO20120057A1/en
Priority to US15/478,491 priority patent/US9993969B2/en
Priority to US15/478,601 priority patent/US9969128B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/28—Grooving workpieces
    • B23C3/30—Milling straight grooves, e.g. keyways
    • B23C3/305—Milling straight grooves, e.g. keyways in which more than one milling tool is used simultaneously, e.g. for sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0064—Devices for removing chips by using a magnetic or electric field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror
    • B29C65/2015—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror being a single welding mirror comprising several separate heating surfaces in different planes, e.g. said heating surfaces having different temperatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" and involving the use of a facer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/749—Removing scrap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02245—Abrading, e.g. grinding, sanding, sandblasting or scraping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/524—Joining profiled elements
    • B29C66/5243—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces
    • B29C66/52431—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/725—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being hollow-walled or honeycombs
    • B29C66/7252—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being hollow-walled or honeycombs hollow-walled
    • B29C66/72523—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being hollow-walled or honeycombs hollow-walled multi-channelled or multi-tubular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
    • E06B3/9604—Welded or soldered joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
    • B29L2031/005—Profiled members, e.g. beams, sections having a profiled transverse cross-section for making window frames

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laser Beam Processing (AREA)

Description

DESCRIZIONE DESCRIPTION

Annessa a domanda di brevetto per INVENZIONE INDUSTRIALE avente per titolo Attached to a patent application for INDUSTRIAL INVENTION having the title

“Metodo e dispositivo per la saldatura di profilati in materiale plastico, in particolare PVC†⠀ œMethod and device for welding plastic profiles, in particular PVCâ €

La presente invenzione ha per oggetto un metodo e relativo dispositivo per la saldatura di profilati in materiale plastico, in particolare PVC. The present invention relates to a method and relative device for welding plastic profiles, in particular PVC.

Nella tecnica nota i profilati in PVC, per lo più utilizzati come serramenti, vengono saldati tra di loro mediante fusione di rispettive superfici di testa al fine di realizzare una struttura a cornice applicabile a porte o finestre. In the known art, the PVC profiles, mostly used as window frames, are welded together by fusion of respective end surfaces in order to create a frame structure applicable to doors or windows.

In particolare, la fusione avviene riscaldando le porzioni da collegare mediante opportune piastre a resistenze elettriche e premendo poi le porzioni riscaldate l’una contro l’altra per favorirne la fusione. In particular, the fusion takes place by heating the portions to be connected by means of suitable plates with electric resistances and then pressing the heated portions against each other to favor the fusion.

Generalmente, le porzioni riscaldate sono le estremità di testa dei profilati, opportunamente tagliate a 45° per definire ad esempio una porzione ad angolo retto di un rispettivo serramento. Generally, the heated portions are the head ends of the profiles, suitably cut at 45 ° to define, for example, a right-angled portion of a respective window or door.

Questa metodologia viene attuata da macchine di saldatura dotate di rispettivi organi di trattenimento dei profilati, mobili in avvicinamento reciproco per portare a contatto le estremità riscaldate da saldare. Tali macchine sono altresì dotate di sistemi di finitura, atti a rimuovere il cordone di saldatura che viene a formarsi durante la fusione dei due profilati. Infatti, in corrispondenza della linea di unione dei due profilati (superfici tagliate a 45°), la porzione di materiale fuso in eccesso va a formare un cordone sporgente dalla superficie a vista dei profilati. Per questo motivo, al fine di conferire al serramento finito un aspetto estetico apprezzabile, i profilati una volta saldati subiscono una lavorazione di rimozione del cordone. This method is carried out by welding machines equipped with respective members for holding the sections, movable in reciprocal approach to bring the heated ends to be welded into contact. These machines are also equipped with finishing systems, designed to remove the weld bead that is formed during the fusion of the two profiles. In fact, in correspondence with the joining line of the two profiles (surfaces cut at 45 °), the portion of excess molten material forms a bead protruding from the visible surface of the profiles. For this reason, in order to give the finished window an appreciable aesthetic appearance, the profiles, once welded, undergo a bead removal process.

I dispositivi di saldatura noti e sopra sommariamente descritti presentano tuttavia importanti inconvenienti legati principalmente alla formazione del citato cordone di saldatura. However, the known and briefly described welding devices have important drawbacks mainly linked to the formation of the aforementioned welding seam.

Infatti, va considerato che la zona di saldatura dei profilati in PVC non à ̈ del tutto omogenea e pertanto, per rendere regolari i profili, viene fuso molto materiale con la conseguente formazione di un abbondante cordone, e quindi abbondante materiale di scarto che deve essere rimosso. In fact, it should be considered that the welding area of the PVC profiles is not completely homogeneous and therefore, to make the profiles regular, a lot of material is melted with the consequent formation of an abundant bead, and therefore an abundant waste material that must be removed.

Inoltre, le lavorazioni di finitura atte alla rimozione del cordone e pulizia della zona di saldatura, influiscono sensibilmente nei tempi complessivi di lavorazione del serramento. Si noti infatti che per ogni saldatura del serramento, i profilati devono essere successivamente lavorati. Inoltre per profilati raggiati la rimozione di detto cordone à ̈ notevolmente complicata. Inoltre, i macchinari utilizzati per le sopra citate operazioni di finitura risultano essere ingombranti e particolarmente costosi. Furthermore, the finishing processes suitable for removing the bead and cleaning the welding area significantly affect the overall processing times of the window or door. In fact, it should be noted that for each welding of the window, the profiles must be subsequently machined. Furthermore, for rounded profiles, the removal of said bead is considerably complicated. Furthermore, the machines used for the aforementioned finishing operations are bulky and particularly expensive.

Questo comporta la necessità di sostenere costi e tempi di lavorazione aggiuntivi data anche la presenza di ulteriori attrezzature ingombranti. This entails the need to sustain additional costs and processing times, also given the presence of additional bulky equipment.

In questo contesto, il compito tecnico alla base della presente invenzione à ̈ proporre un metodo e relativo dispositivo per la saldatura di profilati in materiale plastico, in particolare PVC che superi gli inconvenienti della tecnica nota sopra citati. In this context, the technical task underlying the present invention is to propose a method and relative device for welding plastic profiles, in particular PVC, which overcomes the aforementioned drawbacks of the known art.

In particolare, Ã ̈ scopo della presente invenzione mettere a disposizione un metodo e relativo dispositivo per saldare due profilati in materiale plastico, in particolare PVC in grado di eliminare tutte le operazioni aggiuntive atte alla rimozione del cordone di saldatura. In particular, it is an object of the present invention to provide a method and relative device for welding two plastic profiles, in particular PVC, capable of eliminating all the additional operations suitable for removing the weld bead.

Ulteriore scopo della presente invenzione à ̈ proporre un metodo per saldare profilati in materiale plastico, in particolare PVC che sia veloce e di costi contenuti. A further object of the present invention is to propose a method for welding plastic profiles, in particular PVC, which is fast and of low cost.

Gli scopi specificati sono sostanzialmente raggiunti da un metodo e relativo dispositivo per la saldatura di profilati in materiale plastico, in particolare PVC comprendente le caratteristiche tecniche esposte in una o più delle rivendicazioni allegate. The specified purposes are substantially achieved by a method and relative device for welding plastic profiles, in particular PVC, comprising the technical characteristics set out in one or more of the attached claims.

Ulteriori caratteristiche e vantaggi della presente invenzione appariranno maggiormente chiari dalla descrizione indicativa, e pertanto non limitativa, di una forma di realizzazione preferita ma non esclusiva di un metodo e relativo dispositivo per la saldatura di profilati in materiale plastico, in particolare PVC, come illustrato negli uniti disegni in cui: Further characteristics and advantages of the present invention will become clearer from the indicative, and therefore non-limiting, description of a preferred but not exclusive embodiment of a method and relative device for welding plastic profiles, in particular PVC, as illustrated in the united drawings in which:

- le figure 1a ed 1b mostrano viste prospettiche e schematizzate di un dispositivo ad una testa (le teste possono essere replicate su macchine che contemporaneamente lavorano 4-6 angoli) per la saldatura di profilati in materiale plastico, in particolare PVC secondo la presente invenzione; - Figures 1a and 1b show perspective and schematic views of a one-head device (the heads can be replicated on machines that simultaneously work 4-6 corners) for welding plastic profiles, in particular PVC according to the present invention;

- le figure 2a e 2b mostrano dettagli del dispositivo di figura 1a ed 1b in rispettive condizioni operative; figures 2a and 2b show details of the device of figures 1a and 1b in respective operating conditions;

- la figura 3 mostra una vista in dettaglio di una ulteriore sequenza operativa; e Figure 3 shows a detailed view of a further operative sequence; And

- le figure 4 e 5 mostrano profilati in PVC durante le fasi di saldatura reciproca; - figures 4 and 5 show PVC profiles during the reciprocal welding phases;

- la figura 6 mostra in modo schematico due fasi successive della esecuzione tradizionale della saldatura delle estremità di testa di profilati in cui à ̈ evidenziata la formazione dei cordoli su entrambi i lati: interno ed esterno; - figure 6 schematically shows two successive phases of the traditional execution of the welding of the end ends of profiles in which the formation of the curbs on both sides is highlighted: internal and external;

- la figura 7 mostra in modo schematico due fasi successive della esecuzione della saldatura delle estremità di testa di profilati secondo il brevetto in cui à ̈ evidenziata la formazione dei cordoli solamente sui lati interni dei profilati cioà ̈ sui lati delimitanti lo spazio interno del profilato. - figure 7 schematically shows two successive phases of the execution of the welding of the end ends of profiles according to the patent in which the formation of the curbs is highlighted only on the internal sides of the profiles, that is on the sides delimiting the internal space of the profile.

Con riferimento alle figure allegate, con 1 Ã ̈ indicato un dispositivo per la saldatura di profilati in materiale plastico, in particolare PVC; With reference to the attached figures, 1 indicates a device for welding plastic profiles, in particular PVC;

Tale dispositivo attua un metodo per la saldatura di profilati in materiale plastico, in particolare PVC in cui vengono predisposti almeno due profilati 3 in PVC, con rispettive zone da saldare 4 affacciate tra di loro. Come sarà meglio specificato in seguito secondo il metodo viene realizzata una scanalatura 19 in corrispondenza di ciascuna zona da saldare 4 dei profilati 3 per mezzo di una operazione di asportazione (fresatura, fusione). This device implements a method for welding plastic profiles, in particular PVC, in which at least two PVC profiles 3 are arranged, with respective areas to be welded 4 facing each other. As will be better specified hereinafter, according to the method, a groove 19 is made in correspondence with each zone 4 of the sections 3 to be welded by means of a removal operation (milling, casting).

Di seguito successivamente le zone da saldare 4 vengono riscaldate ed accoppiate premendo i profilati l’uno contro l’altro per mantenere le zone 4 in contatto reciproco. In questo modo le scanalature 19 dei due profilati 3 definiscono un vano 19a di contenimento di un cordone di saldatura generato durante la fusione dei rispettivi profilati 3. Subsequently, the areas to be welded 4 are heated and coupled by pressing the profiles against each other to keep the areas 4 in mutual contact. In this way the grooves 19 of the two profiles 3 define a compartment 19a for containing a welding bead generated during the fusion of the respective profiles 3.

Nel seguito della presente descrizione verrà illustrato un unico dispositivo di saldatura 1 atto alla saldatura delle estremità di due rispettivi profilati. Tuttavia, la presente invenzione può comprendere una serie di dispositivi 1, ciascuno dei quali operante su una rispettiva estremità di un profilato. Ad esempio, per realizzare una cornice rettangolare utilizzabile come serramento, vengono disposti quattro dispositivi 1 ciascuno predisposto a saldare i profilati in corrispondenza di angoli retti della citata cornice. In the remainder of the present description, a single welding device 1 will be illustrated, suitable for welding the ends of two respective sections. However, the present invention can comprise a series of devices 1, each of which operates on a respective end of a section. For example, to make a rectangular frame that can be used as a window or door, four devices 1 are arranged, each designed to weld the sections at right angles of the aforementioned frame.

Con riferimento alla figura 1 si noti che il dispositivo 1 comprende una coppia di organi di trattenimento 2 di rispettivi profilati 3 in PVC , atti ad impegnare i profilati 3 stessi con corrispondenti zone da saldare 4 affacciate tra di loro. With reference to Figure 1, it should be noted that the device 1 comprises a pair of retaining members 2 of respective PVC profiles 3, adapted to engage the profiles 3 themselves with corresponding areas to be welded 4 facing each other.

In particolare, ciascun organo di trattenimento comprende una porzione di base 5 sul quale viene posizionato il profilato 3, ed una porzione mobile 6 disposta al di sopra della porzione di base 5. La porzione mobile 6 à ̈ opportunamente movimentata (in modo noto e pertanto non descritto nel dettaglio) per spostarsi verso la porzione di base 5 e trattenere così il profilato 3. In particular, each retaining member comprises a base portion 5 on which the section 3 is positioned, and a movable portion 6 arranged above the base portion 5. The movable portion 6 is suitably moved (in a known way and therefore not described in detail) to move towards the base portion 5 and thus retain the profile 3.

Come visibile nelle unite figure, ciascun profilato 3 à ̈ pertanto disposto tra la porzione di base 5 e la porzione mobile 6, con la rispettiva estremità di testa sporgente. Le estremità di testa dei profilati costituiscono le zone da saldare 4 e per questo motivo risultano essere contraffacciate. As can be seen in the accompanying figures, each section 3 is therefore arranged between the base portion 5 and the mobile portion 6, with the respective head end protruding. The head ends of the profiles constitute the areas to be welded 4 and for this reason they are counterfaced.

Si noti inoltre che le zone da saldare 4 sono opportunamente tagliate a 45° per definire un accoppiamento tra due profilati ad angolo retto. It should also be noted that the areas 4 to be welded are suitably cut at 45 ° to define a coupling between two right-angled sections.

Ancora, il dispositivo 1 comprende mezzi di movimentazione 7 degli organi di trattenimento 2, per spostare i profilati 3 tra una prima posizione di allontanamento reciproco ed una seconda posizione di avvicinamento reciproco in cui le zone da saldare 4 vengono accoppiate tra di loro. Furthermore, the device 1 comprises means 7 for moving the retaining members 2, for moving the sections 3 between a first position of mutual separation and a second position of mutual approach in which the areas to be welded 4 are coupled together.

In particolare, i mezzi di movimentazione 7 presentano per ciascun organo di trattenimento 2 una guida di scorrimento 8, estendentesi parallelamente allo sviluppo longitudinale del profilato 3. Sulla guida di scorrimento à ̈ montato un carrello 9 solidale alla citata porzione di base 5. Inoltre, ciascun carrello 9 à ̈ accoppiato ad un sistema di movimentazione 10 (non descritto nel dettaglio in quanto di tipo noto e non facente parte della presente invenzione) atto a spostare entrambi i carrelli 9 degli organi di trattenimento 2 in avvicinamento/allontanamento reciproco. In particular, the handling means 7 have for each retaining member 2 a sliding guide 8, extending parallel to the longitudinal development of the section 3. A carriage 9 is mounted on the sliding guide, integral with the aforementioned base portion 5. Furthermore, each carriage 9 is coupled to a movement system 10 (not described in detail as it is of a known type and not part of the present invention) able to move both carriages 9 of the retaining members 2 towards / away from each other.

Il dispositivo 1 comprende inoltre mezzi di riscaldamento 11 delle citate zone da saldare 4 dei profilati in PVC. I mezzi di riscaldamento 11 sono preferibilmente mobili tra una condizione attiva in cui sono interposti tra i profilati 3, ed una condizione di non uso in cui sono allontanati dai profilati 3. The device 1 also comprises heating means 11 for the aforementioned areas to be welded 4 of the PVC profiles. The heating means 11 are preferably movable between an active condition in which they are interposed between the profiles 3, and a condition of non-use in which they are moved away from the profiles 3.

Si noti in particolare che quando i profilati 2 sono disposti dai mezzi di movimentazione 7 in allontanamento reciproco, definiscono una zona di passaggio dei mezzi di riscaldamento 11. In questo modo, una volta riscaldate le zone da saldare 4, i profilati 3 vengono avvicinati tra di loro e premuti con le rispettive teste di estremità l’una contro l’altra. It should be noted in particular that when the sections 2 are arranged by the movement means 7 in mutual distance, they define a passage area for the heating means 11. In this way, once the zones to be welded 4 have been heated, the sections 3 are brought closer together. of them and pressed with the respective heads of extremities against each other.

Vantaggiosamente, i mezzi di riscaldamento 11 presentano una resistenza elettrica 12, avente conformazione sostanzialmente piastriforme, montata su un elemento di movimentazione 13. Preferibilmente, il sistema di movimentazione 13 Ã ̈ costituito da una coppia di carrelli 14 scorrevolmente montati su rispettive rotaie 15 e ciascuno dei quali disposto da parti opposte della citata resistenza 12. In questo modo, la resistenza 12 risulta essere ancorata ai carrelli 14 e movimentata da essi lungo le rotaie 15. I carrelli 14 sono inoltre operativamente collegati ad un motore 16, per mezzo di una biella-manovella 17. Vantaggiosamente, la biella manovella 17 trasforma il moto rotatorio imposto dal motore 16 in un moto a va e vieni dei carrelli 14 e della resistenza 12 per inserire/disinserire la resistenza elettrica 12 tra/da i citati profilati 3. Advantageously, the heating means 11 have an electrical resistance 12, having a substantially plate-like conformation, mounted on a movement element 13. Preferably, the movement system 13 consists of a pair of carriages 14 slidably mounted on respective rails 15 and each of which arranged on opposite sides of the aforementioned resistance 12. In this way, the resistance 12 is anchored to the carriages 14 and moved by them along the rails 15. The carriages 14 are also operationally connected to a motor 16, by means of a connecting rod - crank 17. Advantageously, the crank connecting rod 17 transforms the rotary motion imposed by the engine 16 into a to and fro motion of the carriages 14 and of the resistance 12 to insert / disconnect the electrical resistance 12 between / from the aforementioned profiles 3.

Il dispositivo 1 Ã ̈ inoltre dotato di mezzi di asportazione per fresatura 18 per realizzare almeno una scanalatura 19 su un bordo periferico di almeno una zona da saldare 4. The device 1 is also equipped with removal means for milling 18 to make at least one groove 19 on a peripheral edge of at least one area to be welded 4.

I mezzi di asportazione per fresatura 18 comprendono un telaio di sostegno 20 posto al di sopra degli organi di trattenimento 2, ed almeno un utensile di lavorazione 21, affacciato ad un profilato 3 per realizzare sulla zona da saldare 4 la citata scanalatura 19. The removal means for milling 18 comprise a support frame 20 placed above the retaining members 2, and at least one machining tool 21, facing a section 3 to make the aforementioned groove 19 on the area to be welded 4.

L’utensile 21 viene movimentato da un organo motore 22 preferibilmente di tipo elettrico e miniaturizzato, motore brushless sensorless ad altissime velocita’ di rotazione The tool 21 is moved by a motor 22 preferably of the electric and miniaturized type, sensorless brushless motor with very high rotation speed

Inoltre, l’utensile 21 viene movimentato da un corpo di movimentazione 23, tra una prima condizione di riposo (posizione in cui non à ̈ interposto tra i profilati 3) ed una seconda condizione di lavorazione in cui à ̈ interposto tra i profilati 3 in PVC. Furthermore, the tool 21 is moved by a handling body 23, between a first rest condition (position in which it is not interposed between the profiles 3) and a second machining condition in which it is interposed between the profiles 3 in PVC.

In maggiore dettaglio, i mezzi di asportazione per fresatura 18 comprendono preferibilmente una coppia di utensili di lavorazione 21, ciascuno dei quali dotato di una testa 21a attiva sul bordo periferico di una rispettiva zona da saldare 4. In greater detail, the removal means for milling 18 preferably comprise a pair of machining tools 21, each of which is equipped with a head 21a active on the peripheral edge of a respective area to be welded 4.

Come illustrato nelle viste in dettaglio, gli utensili 21 sono contrapposti tra loro per lavorare contemporaneamente su entrambi i profilati 3. As shown in the detailed views, the tools 21 are opposed to each other to work simultaneously on both profiles 3.

Inoltre, il telaio 20 à ̈ dotato di una barra di sostegno 24 disposta al di sopra degli organi di trattenimento 2 e predisposta a sostenere gli utensili 21 che in questa situazione risultano essere montati su una estremità inferiore della barra 24 stessa. Furthermore, the frame 20 is equipped with a support bar 24 arranged above the retaining members 2 and arranged to support the tools 21 which in this situation are mounted on a lower end of the bar 24 itself.

La barra 24 Ã ̈ operativamente collegata al corpo di movimentazione 23 per essere movimentata in corrispondenza delle zone da saldare 4. Vantaggiosamente, gli utensili 21 vengono posizionati in corrispondenza del bordo laterale della zona 4 per mezzo della movimentazione del citato corpo di movimentazione 23. The bar 24 is operatively connected to the moving body 23 to be moved in correspondence with the areas to be welded 4. Advantageously, the tools 21 are positioned in correspondence with the lateral edge of the area 4 by means of the movement of the aforementioned moving body 23.

In particolare, il corpo 23 comprende una coppia di guide di sostegno 25 sulle quali la barra 24 Ã ̈ scorrevolmente montata e movimentata da un motore noto e non descritto nel dettaglio. In particular, the body 23 comprises a pair of support guides 25 on which the bar 24 is slidably mounted and moved by a known motor which is not described in detail.

Inoltre, la barra 24 viene mossa verticalmente per mezzo di un asse con vite senza fine disposto in corrispondenza del telaio 20. Furthermore, the bar 24 is moved vertically by means of an axis with an endless screw arranged in correspondence with the frame 20.

Vantaggiosamente, sia gli utensili 21 che l’organo motore 22 sono supportati dalla barra 24 e mobili con essa sia orizzontalmente (lungo le guide 25) e verticalmente per mezzo della vite senza fine 26). Advantageously, both the tools 21 and the drive member 22 are supported by the bar 24 and movable with it both horizontally (along the guides 25) and vertically by means of the worm screw 26).

Il dispositivo 1 à ̈ inoltre dotato di un pressore di contenimento 27 mobile lungo una direzione trasversale alla direzione di movimentazione dei profilati 3, per attestarsi sulle scanalature 19 realizzate nelle rispettive zone da saldare. Tale pressore potra’ essere portato in temperatura per meglio sagomare il materiale plastico sottostante. The device 1 is also equipped with a containment presser 27 movable along a direction transverse to the direction of movement of the sections 3, to abut on the grooves 19 made in the respective areas to be welded. This presser can be brought up to temperature to better shape the underlying plastic material.

In particolare, nella condizione di saldatura delle zone 4, vale a dire quando vengono portate a contatto e premute l’una contro l’altra, le scanalature 19 definiscono in collaborazione reciproca un vano di contenimento 19a. Il vano 19a à ̈ inoltre delimitato dal pressore di contenimento 27 il quale evita la fuoriuscita di materiale fuso al di fuori del vano 19a. In particular, in the welding condition of the zones 4, that is to say when they are brought into contact and pressed against each other, the grooves 19 mutually define a containment compartment 19a. The compartment 19a is also delimited by the containment presser 27 which avoids the leakage of molten material outside the compartment 19a.

Preferibilmente, vengono predisposti due pressori di contenimento 27, ciascuno dei quali associabili ad una rispettiva coppia di scanalature 19 contrapposte per definire due vani di contenimento 19a di rispettivi cordoli di saldatura. Preferably, two containment pressers 27 are provided, each of which can be associated with a respective pair of opposite grooves 19 to define two containment compartments 19a for respective welding beads.

In particolare, un primo pressore 27 risulta essere disposto al di sopra dei profilati, mentre un secondo pressore 27 risulta essere disposto al di sotto dei profilati 3. In particular, a first presser 27 is arranged above the sections, while a second presser 27 is arranged below the sections 3.

Si noti infatti che le scanalature 19 vengono applicate per le porzioni esternamente a vista dei profilati 3, vale a dire i bordi laterali tagliati a 45° che saldati l’uno con l’altro determinano la formazione di un cordone di saldatura sporgente. It should be noted in fact that the grooves 19 are applied for the externally visible portions of the profiles 3, that is to say the lateral edges cut at 45 ° which, when welded to each other, determine the formation of a protruding weld bead.

In questa situazione, il cordone non fuoriesce dal vano 19a ma viene contenuto all’interno dello stesso. In this situation, the cord does not come out of the compartment 19a but is contained inside it.

In questo contesto, i pressori 27 sono mobili mediante opportuni elementi di movimentazione non descritti in quanto di tipo noto ed in grado di avvicinare/allontanare i pressori 27 stessi durante le varie fasi di saldatura dei profilati 3. In this context, the pressers 27 are movable by means of suitable handling elements not described as they are of a known type and are capable of bringing the pressers 27 closer together during the various welding phases of the sections 3.

Il dispositivo 1 à ̈ inoltre dotato di un organo elettrostatico 28 di trattenimento del truciolo formantesi durante l’operazione di asportazione per fresatura e di un’ aspirazione a vortice concentrica all’utensile per rimuovere il truciolo trattenuto. The device 1 is also equipped with an electrostatic member 28 for retaining the chip forming during the removal operation by milling and with a concentric vortex suction to the tool to remove the retained chip.

L’organo elettrostatico 28 à ̈ costituito da un elettrodo connesso all’ utensile di lavorazione 21 e collegato ad un generatore ad alta tensione. In questo modo, il truciolo caricato con polarità negativa, viene trattenuto dalla testa 21a di fresa (che funge da elettrodo) caricata positivamente per evitare la dispersione del citato truciolo. The electrostatic organ 28 consists of an electrode connected to the machining tool 21 and connected to a high voltage generator. In this way, the chip charged with negative polarity is held by the positively charged cutter head 21a (which acts as an electrode) to avoid dispersion of the chip.

Vantaggiosamente, vengono facilmente aspirati tutti i trucioli in PVC generati dalle operazioni di asportazione per fresatura. Advantageously, all the PVC shavings generated by the milling removal operations are easily aspirated.

Il dispositivo 1 sopra descritto in termini prevalentemente strutturali, attua un metodo di saldatura anch’esso oggetto della presente invenzione. Il metodo comprende le fasi di predisporre almeno due profilati in PVC 3, disposti con le rispettive zone da saldare 4 affacciate tra di loro, in corrispondenza degli organi di trattenimento. The device 1 described above in mainly structural terms, implements a welding method which is also the subject of the present invention. The method comprises the steps of providing at least two PVC profiles 3, arranged with the respective areas to be welded 4 facing each other, in correspondence with the retaining members.

Successivamente, vengono realizzate le scanalature 19 in corrispondenza di ciascuna zona da saldare 4 dei profilati 3. Subsequently, the grooves 19 are made in correspondence with each zone 4 of the profiles 3 to be welded.

Di seguito, vengono riscaldate le zone da saldare 4 ed accoppiate tra di loro premendo i profilati 3 l’uno contro l’altro. In questo modo vengono mantenute le zone 4 in contatto reciproco per fondere le zone 4 tra di loro definendo così un cordone di saldatura. Thereafter, the areas to be welded 4 are heated and coupled together by pressing the profiles 3 against each other. In this way the areas 4 are kept in mutual contact to melt the areas 4 together thus defining a weld bead.

Come sopra descritto, il cordone di saldatura viene contenuto nel vano 19a realizzato precedentemente dalle scanalature 19 e trattenuto all’interno del vano 19a stesso per mezzo del pressore 27. As described above, the welding bead is contained in the compartment 19a previously made by the grooves 19 and held inside the compartment 19a itself by means of the presser 27.

Si noti infatti che quando i profilati 3 vengono avvicinati, le scanalature 19 coincidono tra di loro per definire il vano 19a. Inoltre, la presenza del pressore 27 determina una chiusura del vano 19a che mantiene il cordone di saldatura sullo stesso piano delle superfici esterne a vista dei profilati 3. It should in fact be noted that when the sections 3 are brought closer together, the grooves 19 coincide with each other to define the space 19a. Furthermore, the presence of the presser 27 determines a closure of the compartment 19a which keeps the welding bead on the same plane as the external visible surfaces of the sections 3.

La fase di realizzazione della scanalatura 19 viene attuata mediante una operazione di asportazione di materiale sui bordi periferici definiti dalle estremità di testa di ciascun profilato 3. In questo modo, la scanalatura 19 ottenuta presenta una conformazione sostanzialmente a gradino che si estende lungo tutto lo sviluppo della zona da saldare 4. Precedentemente alla fase di riscaldamento delle zone da saldare 4, ed in particolare durante la fase di asportazione per fresatura, viene attuata la fase di trattenimento del truciolo mediante un campo elettrico. Successivamente, il truciolo viene aspirato e viene attuata la fase di riscaldamento. The step of making the groove 19 is carried out by removing material on the peripheral edges defined by the head ends of each section 3. In this way, the groove 19 obtained has a substantially stepped conformation which extends along the entire length. of the area to be welded 4. Prior to the step of heating the areas to be welded 4, and in particular during the step of removal by milling, the step of retaining the chip by means of an electric field is carried out. Subsequently, the chip is aspirated and the heating phase is carried out.

La presente invenzione raggiunge gli scopi proposti. In particolare, la possibilità di mantenere il cordone di saldatura all’interno del vano 19a definito dalle due scanalature 19, evita la fuoriuscita di materiale in eccesso. Di conseguenza, vengono eliminate tutte le lavorazioni di finitura superficiale atte alla rimozione di materiale in eccesso, con i conseguenti vantaggi in termini di tempo, energia e di risparmio nell’uso di ulteriori macchinari. The present invention achieves the proposed aims. In particular, the possibility of keeping the weld bead inside the compartment 19a defined by the two grooves 19 prevents excess material from escaping. Consequently, all the surface finishing processes aimed at removing excess material are eliminated, with the consequent advantages in terms of time, energy and savings in the use of additional machinery.

Inoltre, l’operazione di asportazione garantisce un livellamento delle superfici dei profilati 3 a contatto reciproco, con il conseguente risparmio del materiale che allo stato attuale deve essere fuso per ottenere la misura voluta. Furthermore, the removal operation guarantees a leveling of the surfaces of the sections 3 in mutual contact, with the consequent saving of the material which at present must be melted to obtain the desired size.

Claims (19)

RIVENDICAZIONI 1. Metodo per la saldatura di profilati in materiale plastico, in particolare PVC, comprendente le fasi di: - predisporre almeno due profilati in PVC (3), disposti con rispettive zone da saldare (4) affacciate tra di loro; - riscaldare dette zone da saldare (4); - accoppiare tra di loro le zone da saldare (4) premendo i profilati (3) l’uno contro l’altro per mantenere le zone (4) in contatto reciproco; - detta fase di accoppiare le zone da saldare (4) definendo una sottofase di fondere le zone (4) tra di loro per definire un cordone di saldatura; caratterizzato dal fatto che comprende inoltre, precedentemente alla fase del riscaldamento, la fase di realizzare una scanalatura (19) in corrispondenza di ciascuna zona da saldare dei profilati. CLAIMS 1. Method for welding plastic profiles, in particular PVC, comprising the steps of: - preparing at least two PVC profiles (3), arranged with respective areas to be welded (4) facing each other; - heating said areas to be welded (4); - couple the areas to be welded (4) together by pressing the profiles (3) against each other to keep the areas (4) in mutual contact; - said step of coupling the areas to be welded (4) defining a sub-step of melting the areas (4) together to define a weld bead; characterized in that it further comprises, prior to the heating step, the step of making a groove (19) in correspondence with each area of the sections to be welded. 2. Metodo secondo la rivendicazione precedente, caratterizzato dal fatto che detta fase di accoppiare le zone da saldare (4) comprende la sottofase di realizzare un vano di contenimento (19a) definito dalle scanalature (19) di ciascuna zona (4); detto cordone di saldatura essendo realizzato all’interno di detto vano di contenimento (19a). 2. Method according to the preceding claim, characterized in that said step of coupling the areas to be welded (4) comprises the sub-step of making a containment compartment (19a) defined by the grooves (19) of each area (4); said weld bead being made inside said containment compartment (19a). 3. Metodo secondo la rivendicazione 1 o 2, caratterizzato dal fatto che detta fase di realizzare la scanalatura (19) viene attuata mediante una operazione di asportazione su un bordo periferico di ciascun profilato (3). 3. Method according to claim 1 or 2, characterized in that said step of making the groove (19) is carried out by means of a removal operation on a peripheral edge of each section (3). 4. Metodo secondo la rivendicazione precedente, caratterizzato dal fatto che detta asportazione determina un gradino di detto bordo periferico, sviluppantesi lungo tutto lo sviluppo della zona da saldare (4) di detto profilato (3). 4. Method according to the preceding claim, characterized in that said removal determines a step of said peripheral edge, extending along the entire development of the area to be welded (4) of said profile (3). 5. Metodo secondo la rivendicazione 2, caratterizzato dal fatto che detta fase di realizzare un vano di contenimento (19a) viene attuata attestando le zone da saldare (4) tra di loro; detto vano (19a) essendo definito su una porzione superficiale a vista di detti profilati (3). 5. Method according to claim 2, characterized in that said step of making a containment compartment (19a) is carried out by abutting the areas to be welded (4) to each other; said compartment (19a) being defined on a visible surface portion of said profiles (3). 6. Metodo secondo una qualsiasi delle rivendicazioni da 2 a 5, caratterizzato dal fatto che detta fase di accoppiare le zone da saldare (4) comprende inoltre la fase di disporre un pressore di contenimento (27) in corrispondenza di detto vano (19a) per evitare la fuoriuscita del cordone di saldatura dal vano stesso. Method according to any one of claims 2 to 5, characterized in that said step of coupling the areas to be welded (4) further comprises the step of arranging a containment presser (27) in correspondence with said compartment (19a) to avoid the leakage of the welding bead from the compartment itself. 7. Metodo secondo la rivendicazione precedente, caratterizzato dal fatto che comprende la fase di disporre una coppia di pressori(27), affacciati tra di loro, ed entrambe mobili in avvicinamento reciproco in corrispondenza di un rispettivo vano (19a). 7. Method according to the preceding claim, characterized in that it comprises the step of arranging a pair of pressers (27), facing each other, and both moving towards each other in correspondence with a respective compartment (19a). 8. Metodo secondo la rivendicazione 3, caratterizzato dal fatto che comprende inoltre la sottofase di trattenere il truciolo ottenuto durante l’asportazione mediante un campo elettrostatico e successivamente aspirare detto truciolo. 8. Method according to claim 3, characterized in that it further comprises the sub-phase of retaining the chip obtained during removal by means of an electrostatic field and subsequently sucking up said chip. 9. Dispositivo per la saldatura di profilati in materiale plastico, in particolare PVC, comprendente: - una coppia di organi di trattenimento (2) di rispettivi profilati in PVC (3), per impegnare detti profilati (3) con corrispondenti zone da saldare (4) affacciate tra di loro; - mezzi di riscaldamento (11) di dette zone da saldare (4) dei profilati in PVC (3), mobili tra una condizione attiva in cui sono interposti tra i profilati (3) ed una condizione di non uso in cui sono allontanati da detti profilati (3); - mezzi di movimentazione (7) di detti organi di trattenimento (2) per spostare i profilati (3) tra una prima posizione di allontanamento reciproco ed una seconda posizione di avvicinamento reciproco in cui le zone da saldare (4) vengono accoppiate tra di loro; caratterizzato dal fatto che comprende inoltre mezzi di asportazione per realizzare almeno una scanalatura (19) su un bordo periferico di almeno una zona da saldare (4). 9. Device for welding plastic profiles, in particular PVC, comprising: - a pair of retaining members (2) of respective PVC profiles (3), to engage said profiles (3) with corresponding areas to be welded ( 4) facing each other; - heating means (11) of said areas to be welded (4) of the PVC sections (3), movable between an active condition in which they are interposed between the sections (3) and a non-use condition in which they are removed from said profiles (3); - movement means (7) of said retaining members (2) to move the sections (3) between a first position of mutual distancing and a second position of mutual approach in which the areas to be welded (4) are coupled together ; characterized in that it further comprises removal means for making at least one groove (19) on a peripheral edge of at least one area to be welded (4). 10. Dispositivo secondo la rivendicazione precedente caratterizzato per il fatto che detti mezzi di asportazione sono costituiti da mezzi di asportazione per fresatura (18). 10. Device according to the preceding claim characterized in that said removal means consist of removal means by milling (18). 11. Dispositivo secondo la rivendicazione precedente, caratterizzato dal fatto che detti mezzi di asportazione per fresatura (18) comprendono: - un telaio di sostegno (20) posto in corrispondenza di detti organi di trattenimento (2); - almeno un utensile di lavorazione (21), affacciato ad un rispettivo profilato (3) per realizzare sulla zona da saldare (4) detta scanalatura (19); - un organo motore (22) associato a detto utensile (21); ed - un corpo di movimentazione (23) dell’utensile (21), per movimentarlo tra una prima condizione di riposo ed una seconda condizione di lavorazione in cui à ̈ interposto tra i profilati in PVC (3). 11. Device according to the preceding claim, characterized in that said removal means by milling (18) comprise: - a support frame (20) placed in correspondence with said retaining members (2); - at least one machining tool (21), facing a respective profile (3) to make said groove (19) on the area to be welded (4); - a motor member (22) associated with said tool (21); and - a movement body (23) of the tool (21), to move it between a first rest condition and a second working condition in which it is interposed between the PVC profiles (3). 12. Dispositivo secondo la rivendicazione precedente, caratterizzato dal fatto che comprende una coppia di utensili di lavorazione (21), ciascuno dei quali presentante una testa (21a) attiva su un bordo periferico di una rispettiva zona da saldare (4) per realizzare detta scanalatura (19); detti utensili (21) essendo contrapposti tra loro per lavorare contemporaneamente su due bordi affacciati dei profilati (3). 12. Device according to the preceding claim, characterized in that it comprises a pair of machining tools (21), each of which has a head (21a) active on a peripheral edge of a respective area to be welded (4) to make said groove (19); said tools (21) being opposite each other to work simultaneously on two facing edges of the sections (3). 13. Dispositivo secondo la rivendicazione precedente, caratterizzato dal fatto che detto telaio (20) comprende una barra di sostegno (24) disposta al di sopra degli organi di trattenimento (2); detti utensili (21) essendo montati sull’estremità della barra (24). 13. Device according to the preceding claim, characterized in that said frame (20) comprises a support bar (24) arranged above the retaining members (2); said tools (21) being mounted on the end of the bar (24). 14. Dispositivo secondo la rivendicazione precedente, caratterizzato dal fatto che detto corpo di movimentazione (23) dell’utensile (21) comprende una coppia di guide di sostegno (25) di detta barra (24) per spostare la barra (24) stessa tra una posizione retratta ed una posizione in cui à ̈ interposta tra i profilati (3). 14. Device according to the preceding claim, characterized in that said moving body (23) of the tool (21) comprises a pair of support guides (25) of said bar (24) to move the bar (24) itself between a retracted position and a position in which it is interposed between the profiles (3). 15. Dispositivo secondo la rivendicazione 13, caratterizzato dal fatto che detto organo motore (22) à ̈ impegnato sulla barra (24). 15. Device according to claim 13, characterized in that said motor member (22) is engaged on the bar (24). 16. Dispositivo secondo una qualsiasi delle rivendicazioni da 9 a 14, caratterizzato dal fatto che comprende inoltre almeno un pressore di contenimento (27), mobile lungo una direzione trasversale alla direzione di movimentazione dei profilati (3), per attestarsi sulle scanalature (19) realizzate nelle rispettive zone da saldare (4); detto pressore (27) definendo in collaborazione con le scanalature (19) un vano di contenimento (19a) di un cordone di saldatura. 16. Device according to any one of claims 9 to 14, characterized in that it also comprises at least one containment presser (27), movable along a direction transversal to the direction of movement of the sections (3), to abut on the grooves (19) made in the respective areas to be welded (4); said presser (27) defining in collaboration with the grooves (19) a containment compartment (19a) for a welding seam. 17. Dispositivo secondo la rivendicazione precedente, caratterizzato dal fatto che comprende una coppia di pressori di contenimento (27), ciascuno dei quali associabile ad una rispettiva coppia di scanalature (19) contrapposte per definire due vani di contenimento (19a) di rispettivi cordoli di saldatura. 17. Device according to the preceding claim, characterized in that it comprises a pair of containment pressers (27), each of which can be associated with a respective pair of opposing grooves (19) to define two containment compartments (19a) of respective curbs welding. 18. Dispositivo secondo la rivendicazione 11, caratterizzato dal fatto che comprende inoltre un organo elettrostatico (28) di trattenimento del truciolo formantesi durante l’asportazione per fresatura del profilato (3); ed un aspiratore per rimuovere il truciolo trattenuto. 18. Device according to claim 11, characterized in that it also comprises an electrostatic member (28) for retaining the chip forming during the removal by milling of the profile (3); and an aspirator to remove the retained chip. 19. Dispositivo secondo la rivendicazione precedente, caratterizzato dal fatto che detto organo elettrostatico (28) à ̈ collegato per mezzo di un elettrodo ad un generatore ad alta tensione.19. Device according to the preceding claim, characterized in that said electrostatic member (28) is connected by means of an electrode to a high voltage generator.
IT000057A 2012-03-07 2012-03-07 "METHOD AND DEVICE FOR WELDING PROFILES IN PLASTIC MATERIAL, IN PARTICULAR PVC" ITMO20120057A1 (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
IT000057A ITMO20120057A1 (en) 2012-03-07 2012-03-07 "METHOD AND DEVICE FOR WELDING PROFILES IN PLASTIC MATERIAL, IN PARTICULAR PVC"
EP13720049.9A EP2822751B1 (en) 2012-03-07 2013-03-04 Device for welding profiled elements in plastic material, in particular pvc
RU2014131312A RU2635614C2 (en) 2012-03-07 2013-03-04 Method and device for welding profile elements from plastic, in particular from pvc
DE202013012778.3U DE202013012778U1 (en) 2012-03-07 2013-03-04 Device for welding profiled elements made of plastic material, in particular PVC
PCT/IB2013/051698 WO2013132406A1 (en) 2012-03-07 2013-03-04 Method and device for welding profiled elements in plastic material, in particular pvc
CN201710155192.7A CN107009633A (en) 2012-03-07 2013-03-04 Equipment for welding plastic material, particularly PVC section components
PL16193166T PL3141374T3 (en) 2012-03-07 2013-03-04 Method for welding profiled elements in plastic material, in particular pvc
US14/381,391 US9969124B2 (en) 2012-03-07 2013-03-04 Method and device for welding profiled elements in plastic material, in particular PVC
PL13720049T PL2822751T3 (en) 2012-03-07 2013-03-04 Device for welding profiled elements in plastic material, in particular pvc
ES16193166T ES2712054T3 (en) 2012-03-07 2013-03-04 Procedure for welding profiled elements in plastic material, in particular PVC
ES16199493T ES2712057T3 (en) 2012-03-07 2013-03-04 Device for welding profiled elements in plastic material, in particular PVC
PL16199493T PL3156214T3 (en) 2012-03-07 2013-03-04 Device for welding profiled elements in plastic material, in particular pvc
CN201380010958.2A CN104284769A (en) 2012-03-07 2013-03-04 Method and device for welding profiled elements in plastic material, in particular pvc
CA2866114A CA2866114C (en) 2012-03-07 2013-03-04 Method and device for welding profiled elements in plastic material, in particular pvc
EP16199493.4A EP3156214B1 (en) 2012-03-07 2013-03-04 Device for welding profiled elements in plastic material, in particular pvc
CN201710155207.XA CN106903895B (en) 2012-03-07 2013-03-04 Method for welding profiled elements of plastic material, in particular PVC
ES13720049.9T ES2616786T3 (en) 2012-03-07 2013-03-04 Device for welding profiled elements in plastic material, in particular PVC
EP16193166.2A EP3141374B1 (en) 2012-03-07 2013-03-04 Method for welding profiled elements in plastic material, in particular pvc
US15/478,491 US9993969B2 (en) 2012-03-07 2017-04-04 Device for welding profiled elements in plastic material, in particular PVC
US15/478,601 US9969128B2 (en) 2012-03-07 2017-04-04 Method for welding profiled elements in plastic material, in particular PVC

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